Coupling attachment for tractors



' Feb. 14, 1928.

I. OFFUTT COUPLING ATTACHMENT FOR TRACTORS Fi'ied Jan. 10. 1927 3 Sheets-Sheet l mmtoo [/21 0142152 Feb. 14, 1928.

l. OFFUTT COUPLING ATTACHMENT FOR TRACTORS Filed Jan. 10. 1927 3 Sheets-Sheet 2 Moan, I

Feb. 14, 1928.

I. OFFUTT COUPLING ATTACHMENT FOR TRACTORS Filed Jan. 10. 1927 3 Sheets-Sheet 3 Patented Feb. 14,1928.

UNITED-STATES PAT-ENTO'FFICE.

. IRA orrorrr, or vvm'rn mr, TEXAS, ssrenon or onnroon'rn r :orrnnnns Tmzrm'v AND QNE-FOUBTQHQ 130 ALBIEHEVI R CH RD, BOTH or rIITNEY, Texas- I oournrno ATTACHMENT FOR TRACTQRS.

- Application filed January 10, .1927. SerialNo. 160,134.

1 This invention relates to new and useful improvements *in' coupling attachments for tractors. '9

The object of the invention isi'to provide an attachment including a draw bar tov which anagricultural implementis coupled and adapted to be connected to a tract or, whereby the implement is caused to function properly. D A particular object of the invention is to arrange theattachment so that the driver may manipulate'it'with his feet to gu de the agricultural implement along therow, thus compensatingfor variances in the travel of the tractor.

' Another object of the'invention is to provide means on the attachment for elevating the working parts of'the implement when it is not desired to use the same. A still'further object ofthe invention is to provide means for fastening the draw 1 bar supports against swinging, whereby the I latter may be made rigid.

A construction designed to carry out the 'invention will be hereinafter described together with other features of the invention.

The invention will be more readily under- I stood from a reading of the tollowing specilication and by reference tothe accompanying drawings, in which an example of the.

' invention is shown and'wherein;

Fig. 1 1s a plan'vlew of an. attachment constructed in accordance with. my invcn tion,

Fig. 2 is a side'elevation of the sa1ne, a portion'of the tractor being indicated 1n the dotted'lines,

Fig 3 is a rear elevationof the attach ment, I p

Fig. 4: is adetail' showing the hanger fastening means,

Fig. 5 is a cross-sectional view takenon the line 5-5 of Fig. 4 and p Fig. 6 is a verticalsectional view taken on the line 6-6 of Fig. 3. v I

In the drawings the numeral 10 designates a transverse arch or yoke. To the in'nerside of the yoke I rivet, or otherwisesecure,

the web plates llnformed atthe rear end of side bars 12. Theside bars are con- :neoted near their forward ends by a trans verse frame bar 13. wh ch 1scurved downwardly. The web plates nearthelr forward ends are fastened to a transverse angle bar let having upright brackets 15 at its ends, riveted or otherwise. secured to said web plates. The parts 10, 11, 12, 13 and 14 C011? stitute a supporting frame. The side bars 12' are provided with clamps 16 adapted to engage around the axle A ofa'tractor, while the bar 13 receivesthe oil pan B, said bars extending along each side of the tractor. This positions the attachment so that the arch 1O overhangs the rear portion of the" tractor.

The usual tractor seat is removed and a seat 17 substituted therefor. Theseat 17 is fastened on the rear contracted end of a seat bar 18 having its forward portions spreml apartiand pivoted on a keeper bar 19 secured "to the angle bar 14. The seat bar is supported by rods 20 depending from the arch 10. Hanger brackets 21 are fastened to the inner sides of the web plates 11 at their rear ends and have crank arms 22 journalled therein. To the rear end of each crank arm is rigidly fastened a depending hanger bar 23, having a forwardly bent eye 241 on its lower end. Reach rods 25 have their rear ends bent downwardly and pivot- 0 ed insaid eyes. while their forward ends are hooked into cars 26 bent downwardly from theforward ends of the side bars 12.

A draw bar 27 is pivoted to the hanger bars by studs 28 and the implement C is secured at the nidlength of the draw bar by an iron C. Bythis arrangement the hanger bars are caused to swing laterally or transversely of the attachment in unison and any pull sustained by the draw bar is partially trans angular brace members 31 secured thereto wardly extending link 48.

plow, planter, or some other implement.

' bars.

and having their forward ends pivoted on the bar 19. The crank arms 22 are provided with hooks 32 engaged in the upper ends of links 33 having their lower ends pivoted to the foot bars 29. The foot bars are provided with pivot pins 34 and the lower ends of the links have apertures 35 receiving said pins, whereby the foot bars may be suspended at different elevations as is shown in Fig. 6. It will be seen that by pressing downward on either foot bar, the arm connected therewith will be rocked, whereby the hanger and draw bars will be swung. If it is desired to shift the bars tothe right, the right hand stirrup 30 is depressed, and

shift to the left isaccomplished by depress ing the left hand stirrup.

In order to elevate and adjust implements connected to the draw bar 27, I provide dual adjusting means comprisingrock shafts 36 and 37 respectively, havlng their inner ends 'journalled in a sleeve 38 carried by a bracket 89 depending from the arch 10. Each shaft has its outer end ournalled in a plate 40 concentrically to. a toothed segment 41 on the upper end of the plate. Each plate is fastened to the web plate 11 of one of the side On the outer end of each shaft is fas tened an adjusting lever 42 having a locking plunger 43 engaging the segment 41. On each shaft is fastened a short arm 44 to which is attached one end of a coil spring 45 having its forward end attached to a standard 46 extending upwardly from the adjacent side bar 12. A pair of uprightlever arms 47 are screwed on each shaft and to the upper end of each arm 47 is pivoted a rear- Each pair of links may be suitably constructed at their rear ends for engaging with a cultivator,

lVhen one of the levers 42 is swung rearwardly, its links 48 are moved downwardly and rearwardly, thus lowering the implement attached thereto and the spring 45 is placed under tension. WVhen said lever is swung forwardly to elevate the implement the spring 45 assists in the work, as will be obvious.

In case it is desired to fasten the hanger bars 23 and the draw bar 27 againstswinging, I secured to the rear portion of the frame a pair of angular clips 49 by means of bolts 50, as is shown in Fi s. 4 and 5. These clips bear against the outer edges of the bars 23 well below the pivots of the latter and thus hold the same against swinging. It will be seen that the attachment may be readily applied to a tractor and easily installed without extensive fastenings or the removal of parts.

The driver has absolute control of the trailing implement and may guide and adjust the same at will.

Various changes in the size and shape of the different parts, as well as modifications and alterations, may be made within the scope of the appended claims.

What I claim, is:

.1. A tractor coupling attachment comprising a supporting frame adapted to be attached to a tractor, a draw bar supended from the attachment by means of hangers, for transverse adjustment, crank members carried by said hangers, and foot devices connected to said members for operating the draw bar adjustment. 2. A tractor coupling attachment comi prising a supporting frame adapted to be attached to a tractor, a draw bar, pivoted hangers for suspending the draw bar, crank arms carried by the pivots of said hangers, and foot operated devices connected With the crank arms for swinging the same transversely of the attachment.

3. A tractor coupling attachment comprising a supporting frame adapted to be attached to a tractor, a draw bar, means for suspending the draw bar, footoperated devices connected with the draw bar suspend-.

ing means for swinging the same transversely of the attachment, and means for fastening the draw bar suspending means against swinging.

4. A tractor coupling attachment comprismg a frame, crank arms journalled in the frame, hanger bars attached to the crank arms, a draw bar connected with the hanger bars, and pivoted foot bars extended beneath the crank arms and having a vertical connection therewith.

5. A tractor coupling attachment comprising a frame, crank arms journalled in the frame, hanger bars attached to the pivot of the crank arms, a draw bar connected with the hanger bars, pivoted foot bars connected to the crank arms by means of interposed links, and sustaining bars extending from the hanger bars to the frame.

6. A tractor coupling attachment comprising a frame'having a yoke, crank arms jour nalled in the frame yoke, hanger bars attached to the crank arms, a draw bar connected with the hanger bars, pivoted foot bars pivoted beneath said armsand having vertical connections to the crank arms, a .shaft journalled in the frame yoke and havat their upper ends to the crank arms, a draw bar pivoted to the lower ends of the hanger bars, foot bars pivoted at their forward ends on the keeper bar and having stirrups at their rear ends, links connecting the foot bars with the crank arms and a seat suspended from the arch.

8. A tractor coupling attachment comprising a supporting frame adapted to, be attached to a tractor, a draw bar, means for suspending the draw bar, foot operated de-v vices connected with said suspending means for swinging the same transversely of the attachment, and a detachable holding member carried by the frame in the path of travel of the suspending means.

In testimony whereof I affix my signature.

IRA OFFUTT.

GERTEE ECATE OE CQRREGTEON, Patent No. 1,659,046. Grantee February 14-, 1928, to

IRA. OFFUTT.

It is hereby certified that the name of the assignee in the above numbered patent was erroneously written and printed as "Charles Thizpen", whereas said name should have been written and printed as "Charles Thigpen, as shown by the records of assignments in this oft'iee; and timttiie said; Letters Yateiit should be read with this correction therein that the some may conform to the record of the ease in the Fateet fittiee.

Signed and sealed this 13th day oi Mareh, A. D. 1928,

. M. J. Moore, Seal. Acting Gommissioner of Patents. 

